... ,OEM/ODM Application range; aluminium housing,alumnium out cover, alumnium speaker out case, aluminium panel, operation panel, metal shell case, metal ... mould - Die trial 2,first article assurance 3,extrudrd aluminium mass production 4,cutting5,deep processing ( punching / stamping, milling, taping, CNC ... are warmly welcome to visit our factory. CNC aluminium external speaker cover